Antislipping attachment.



J. S. GAJBWSKI.

ANTISLIPPING ATTACHMENT APPLICATION FXLED JAN.27,1909,

940,799, Patented N0v.23,1909.

W/r/vassas: I/vvENv-OR UNI'IMU SI'ATFS PATENT OFFICE.

JOHN S. GAJEWSKI, OF MILWAUKEE, WISCONSIN.

ANTISLIPPING ATTACHMENT.

Application filed January 27, 1909.

T o all whom it may concern:

Be it known that I, JonN S. GAJnwsiil, a citizen of the United States, residing at Milwaukee, county of l\lilwaukee, and State of VVisconsiu, have invented new and use ful In'iprovements in Antislipping Attachments, of which the following is a specifica* tion.

My invention relates to improvements in antislipping attachments for boots and shoes.

The object of my invention is to provide a form of device which can be readily attached to, or removed from the foot, in substantially the same manner as a skate, or which can be adjusted to any sized foot and used to prevent slipping when walking upon ice.

More particularly, the object of my invention is to provide a device of this kind which will be sufficiently cheap and effective to create a demand for this class of articles.

I am aware of the fact that several attempts have been made to construct devices of t iis kind, but in order to meet with popular favor, it is necessary' that they shall not add materially to the weight and shall not be clumsy in appearance, nor of a character to interfere with the natural walking movements of the wearer, and my improved device has been designed to meet these requirements.

In the following description, reference is had to the accompanying drawings, in which# Figure 1 is a side view of my invention; and Fig. 2 is a view of the same as seen from the underside.

Like parts are identified by the same reference characters in both views.

The device is principally constructed from sheet metal, a heel plate A and toe plate B bein provided with over-lapping slotted mem ers a and b respectively, the member b being preferably arranged underneath the rear portion of the member a for a part of the distance and then passing through a transverse slot C to the upper surface of the heel plate A. These members a and b are each provided with longitudinal slots D and are secured together by clamping bolts d and d', the slots permittin a relative longitudinal movement of the eel and toe lates to correspond with the length of the oot for which the device is to be ad] usted. A leather heel clamp F and toe clamp G are Specification of Letters Patent.

Patented Nov. 23, 1909.

Serial No. 474,378.

bound to the foot of the wearer by straps f and g. The under surfaces of the respective plates are provided with downwardly extending prongs Il, H and lil.

In order that the device may be made of extremely light, thin material, the respective plates` are reinforced on the under side by transverse bars J, the central portions of which are offset downwardly to receive the members o and b respectively between the bars and the opposing members l and A, thus forming a truss to prevent the mem bers from buckling. These bars are secured at their ends to the plates B and A by means of the prongs H', H and H, such prongs being provided with annular flanges K and stems L, which pass through the ends of the bars J and the plates A or B and are riveted at L to the upper surfaces of the plates. The instep portion of the device is reinforced by a raised resilient .late M, which is secured to the respective p ates A and B by means of the clamping bolt D and by extending upwardly into the arch of the instep, prevents the plates from being buckled upwardly at this point when the weight of the user is applied directly to an obstruction under the instep.

The prongs are preferably formed with a view of guarding against slippage in any direction. The end prongs H are preferably tapered conically to a sharp point. The prongs H and H have wedge shaped eX- tremities and may, if desired, be alike in construction, but should be turned at different angles, the wedge shaped edge of the prong H extending transversely of the foot, while that of the prong H" extends longitudinally. If therefore the ice is slushy, the prongs H and H will be relied upon to prevent slipping either laterally or longitudinally. On harder ice, the pointed prongs H will more readily enter the surface and secure a firm grip.

Having thus described my invention,what I claim as new, and desire to secure by Letters Patent, is-

1. In a device of the described class, the combination of two longitudinal members, each composed of thin material with portions over-lapping, clamping members adjustably securing the other members together, reinforcing bars extending transversely across the under surfaces of said longitudinal members and having their ends secured to one of said longitu inal members and their central portions offset sufliciently to receive a portion of the other longitudinal member, means for securing said longitudinal members to the foot of the wearer, and dowmvardly projecting prongs connected with the respective adjustable members,

L). In a device ot' the described class, the combination of two longitudinal Inen'ibers, each composed of thin material with portions over-lapping, clamping members adjustably securing the other members to gether` reinforcing bars extending transversely across the under surfaces of said longitud'nal nicn'ibers and having their ends secured to one of said longitudinal members and their central portions ott'set sutlicientlj' to receive a portion of the other longitudinal member, means for securing .said longitudinal members to the foot of the wearer, and downwardljY projecting prongs connected with the respective adjustable members, said downwardly projecting prongs serving also to connect the reinforcing bars with such members.

8. In a device of the described class, the combination of two longitudinal members, each composed of thin material with portions over-lapping, clamping members adjustably securin the other members t0- gether, reinforcing bars extending transversely across the under surfaces of said longitudinal members and having their ends secured to one of said longitudinal members and their central portions offset sutiiciently to receive a portion of the other longitudinal member, means for securing said longitudinal members to the foot of the wearer, and downwardly projecting prongs connected with the respective adjustable members, some of said prongs having pointed eX- tremities and others having wedge shaped extremities.

4. In a device of the described class, the

combination of two longitudinal members, each composed of thin material with portions over-lapping, clamping members adjustably securing the other members together, reinforcing bars extending transversely across the under surfaces of said longitudinal members and having their ends secured to one of said longitudinal members and their central. portions ott'set sutiieientljY to receive a portion of the other longitudinal member, means for securin r said longitudinal members to the foot oY the wearer, and downwardly projecting prongs connected with the respective adjustable members, together with an instep reinforcing member connected with one of said elamping bolts and extending upwardly in a? position to tit the arch of a boot or shoe.

5. In a device of the described class, the combination of two longitudinal members, each composed of thin material with portions over-lapping, clamping members ad-w justablj' securing the other members te-Y gether, reinforcing bars extending transversely acrossthe under surfaces of said longitudinal members and havin their ends secured to one of said longitudinal members and their central portions offset sufficiently to receive a. portion of the other longitudinal member, means for securing said longitudinal members to the foot of the wearer, and downwardly projecting prongs connected with the respective adjustable members, some of said prongs having pointed extremities and others having Wed e shaped extremities turned in opposite ireetions.

In testimony whereof I aflix my signature in the presence of two witnesses.

JOHN S. GAJEVVSKI.

Witnesses LEVERETT C. WHEELER, JOHN P. GREGG. 

